According to the principle of damage mechanics, the evolutional lawoffatigue damage of pearlite ductile cast iron was studied with double arms electrical bridge for measuring electrical resistivity.
根据损伤力学原理,用双臂电桥测量电阻的方法,研究了珠光体球墨铸铁的疲劳损伤演变规律。
2
The law ofpermeability changes of different frequency range was studied during the wire rope fatigue test.
研究了钢丝绳弯曲疲劳历程中,磁导率在不同空间频率区间的变化规律。
3
The relation oflawof the fatigue crack extending and feature of macro-profile is discovered, which provides a new method for the life estimation of the brake disc.